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DETERMINATION OF ENDOGENOUS HORMONE LEVELS IN ASCOCHYTA BLIGHT [Ascochyta rabiei (Pass.) Labr.] SUSCEPTIBLE AND RESISTANT CHICKPEAS (Cicer arietinum L.)

M. Ilhan CAGIRGAN, Cengiz TOKER, Salih ULGER2 Mustafa KARHAN

Abstract

Ascochyta blight, caused by Ascochyta rabiei (Pass.) Labr., is the most important foliar disease of chickpea (Cicer arietinum L.) in many countries. Many studies have been carried out on basis of population biology and host-plant resistance of A. rabiei, but the effect of endogenous plant hormone levels on resistance to ascochyta blight of chickpea has been studied rarely. Therefore, the study was designed to compare endogenous plant hormone levels in ascochyta blight susceptible and resistant chickpea genotypes under ascochyta blight infected conditions. ILC 263, (susceptible to ascochyta blight), FLIP 95-60C and FLIP 98-224C (resistant to ascochyta blight) were used to determine the level of plant hormones; indole-3-acetic acid (IAA), zeatin, gibberellic acid 3 (GA3 ), and abscisic acid (ABA). Concentrations of IAA, zeatin, GA3 and ABA were markedly increased in pods of resistant genotypes, FLIP 95-60C and FLIP 98-224C. It was suggested that high zeatin and GA3 concentrations in pods could be detected as biochemical markers to determine resistance to ascochyta blight of chickpea genotypes since the genotypic effect was statistically significant only for zeatin and GA3 . Considering the statistically significant genotypic effects only for zeatin and GA3 , these hormones may be used as biochemical markers to determine resistance to ascochyta blight of chickpea genotypes.

Keyword: Kabuli chickpea; IAA; Zeatin; GA3 ; ABA ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.

Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding

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DETERMINATION OF ENDOGENOUS HORMONE LEVELS IN ASCOCHYTA BLIGHT [Ascochyta rabiei (Pass.) Labr.] SUSCEPTIBLE AND RESISTANT CHICKPEAS (Cicer arietinum L.)

Abstract

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Abstract

The Journal includes only the original research papers about breeding and genetics, agronomy, physiology, forage crops, medicinal and aromatical plants, biotechnology and utilization.

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